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914World.com _ 914World Garage _ Removal of firewall sound deadening adhesive
Posted by: sixaddict Sep 7 2010, 09:02 PM
Have a 74 conversion that i pulled the engine. PO removed engine side sound deadening/insulation but firewall is a mess. Anyone have good solvent to remove nasty old adhesive and leave paint in tact. Can't handle looking at McNasty 
Thanks
Terry
Posted by: RobW Sep 7 2010, 10:01 PM
Its tough and time consuming. I've used goo be gone and a razor, but every mistake will show.... on my Dad's car it got shot eventually anyway...
Posted by: sixaddict Sep 8 2010, 08:39 AM
Started with laquer thinner but decided it will kill pain ....And felt same deal with razor blade. AT least I know what I am in for. Thx
Posted by: Mark Henry Sep 8 2010, 08:59 AM
Started with laquer thinner but decided it will kill pain ...
Funny that stuff gives me a headache....
Posted by: RonnieJ Sep 8 2010, 09:02 AM
I'm using 3M adhesive remover on mine and it's doing a great job. I think a large spray can is around $10.00.
Posted by: 9146986 Sep 8 2010, 09:13 AM
3M Roloc and a 3" green bristle disc. Takes off the paint and makes a lot of dust, but it works great!
Posted by: windforfun Sep 8 2010, 10:59 AM
Acetone perhaps. Let it soak in.
Posted by: pcar916 Sep 8 2010, 12:01 PM
There's nothing faster or easier than a heat gun (not a hair dryer) and a scraper. I took all of mine out of the car with that. The only drawback is if you're careless and burn yourself, but you don't have to put up with fumes all day long. There isn't a gooey mess either.
Good luck
Posted by: mikea100 Sep 8 2010, 12:40 PM
I’m doing the same project right now only I’m stripping inside firewall. I soak it in Goo Gone from and then use Heat gun and brown scrubbing pad. It stinks like hell, but there’s no mess.
Good Luck,
Mike
Posted by: pete-stevers Sep 8 2010, 12:40 PM
Funny thing i bought the 3m crap and it didn't work at all...perhaps the canadian stuff has a few missing ingredients..
but i think that you might as well take a orbital to it.
( you will most likely nick up the paint or end up with a dull old paint, and if you got the engine out...)
take it right down and repray
that is what i did.
Posted by: sixaddict Sep 8 2010, 02:16 PM
I am now prepared ...Thanks all ! USed the heat gun on tar on floor many times just went brain dead on this one.
Lacquer thinner high is why painters are painters !
Posted by: John Jentz Sep 8 2010, 03:29 PM
I used "PURPLE STUFF" worked fine, didn't get high.
Posted by: Tom_T Sep 10 2010, 12:38 PM
Acetone perhaps. Let it soak in.
Do NOT use Acetone as it will blister & soften & remoe the paint.
I used it to remove the overspray paint on my plates & labels.
Posted by: bulitt Feb 22 2014, 12:24 PM
So the PPO did a cheap spray on this car including the hoop and sail panels. Then Vinyl was put over those. The PO removed the vinyl. Apparently someone used black silicone to patch holes in the vinyl. So really liking the look of no vinyl decided to go after all the adhesive etc.
Used turpentine to remove the adhesive. Works really well on contact cement etc. I would guess most of the fabric adhesive used in the 70's was contact cement or rubber cement. Turpentine is made from distilled tree resins so works really well in removing those adhesives or tree sap on your car.
If you have a large surface like the firewall it can be sprayed on with a small sprayer.
Just put it on with paper towels for these smaller areas. The turpentine lifted the adhesive and there was no sign of paint on the towels. Hit the area with acetone after the turp, then washed with soap and water. I'm sure this would be too hot on a laquer or enamel, would need to test an area.
Next up wet sand and polish.
Oh, it stinks...
Posted by: carr914 Feb 22 2014, 01:36 PM
DeNatured Alcohol might work
Posted by: wndsnd Feb 22 2014, 04:03 PM
Brake cleaner.
Posted by: bzettner Feb 22 2014, 04:54 PM
Funny thing i bought the 3m crap and it didn't work at all...perhaps the canadian stuff has a few missing ingredients..
but i think that you might as well take a orbital to it.
( you will most likely nick up the paint or end up with a dull old paint, and if you got the engine out...)
take it right down and repray
that is what i did.
3M stuff didn't effect my glue adhesive either, spraying too much and letting it soak had ZERO effect
Posted by: partwerks Feb 23 2014, 09:00 PM
I'm wondering when/if I put in sound deadening material, if I should just put it over the top of the tar gunk already on the floor, or just put it over the top of it?
Posted by: orthobiz Feb 23 2014, 09:40 PM
Try a little Black & Decker steam gun. I used it on my chassis to get grease off, it was really effective. Try it on a small area first and it is possible to burn through paint (don't ask me how I could know such a thing!)
Paul
Posted by: wndsnd Feb 23 2014, 09:54 PM
I'm wondering when/if I put in sound deadening material, if I should just put it over the top of the tar gunk already on the floor, or just put it over the top of it?
The best tool fot the floor tar is one of those vibrating cutting multi tool. Zips right through it.
John
Posted by: Old Yella Feb 23 2014, 10:40 PM
Goo Gone worked for me but lots of it will start to lift the paint.
I'm wondering when/if I put in sound deadening material, if I should just put it over the top of the tar gunk already on the floor, or just put it over the top of it?
The best tool fot the floor tar is one of those vibrating cutting multi tool. Zips right through it.
John
Posted by: offwatch Feb 23 2014, 11:23 PM
I have had good luck with WD40 for removing adhesives. Used it to clean up butvl tape residue on the windshield and it works great.
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